MESON Chess Problem Database

Problem Display
PID: 249318 (2K4Q/B7/1NR1pp1b/1p1NPq1R/p2k1p2/r3pP2/4P3/8 w - - 0 1)

Salazar Lopez, Francisco

Schakend Nederland, 1969

2K4Q/B7/1NR1pp1b/1p1NPq1R/p2k1p2/r3pP2/4P3/8

#2

10 + 10

15601 Albrecht-Leiss-Degener Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kxe5
      • 2.Qxf6#
    • 1...exd5+
      • 2.Sd7#
  • Tries
    • 1.Sb4?
      • threat
        • 2.Sd7#
      • 1...Kxe5
        • 2.Sd7#
      • 1...Qxe5
        • 2.Sc2#
        • 2.S6d5#
      • 1...Qc2
        • 2.Sxc2#
        • 2.Qd8#
      • 1...Rc3
        • 2.Sc4#
      • 1...Bf8!
    • 1.Sc7?
      • threat
        • 2.Sd7#
      • 1...Kxe5
        • 2.Sd7#
      • 1...Qxe5
        • 2.Sbd5#
      • 1...Qc2
        • 2.Sxb5#
        • 2.Sxe6#
        • 2.Qd8#
      • 1...Rc3
        • 2.Sc4#
      • 1...Bf8!
    • 1.Rc4+?
      • 1...Kxe5
        • 2.Bb8#
      • 1...bxc4!
    • 1.Qd8?
      • threat
        • 2.Sc4#
      • 1...exd5+
        • 2.Sd7#
      • 1...Kxe5
        • 2.Qxf6#
      • 1...Qh7
        • 2.Se7#
      • 1...Bf8!
  • Keys
    • 1.Se7!
      • threat
        • 2.Sd7#
      • 1...Kxe5
        • 2.Sd7#
      • 1...Qxe5
        • 2.Sbd5#
      • 1...Qc2
        • 2.Qd8#
      • 1...Rc3
        • 2.Sc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • K(d);OGATEB,P_SPINP(i),P_SPINQ(g),S_FLIGHT,XP(D)::QAB1(J),XP(i)
    • P(h);CHECK,SBLOCK,XS(C)::B(H)+S(F)
  • Tries
    • Try
      • S(C);
      • Threat
        • B(H)+S(F)
      • Vars
        • K(d);P_SPINP(i),P_SPINQ(g),S_FLIGHT,XP(D)::S(F)
        • R(a);P_PINR(G),SBLOCK::B(H)+S(F)
      • Refutation
        • B(j);
    • Try
      • S(C);
      • Threat
        • B(H)+S(F)
      • Vars
        • K(d);P_SPINP(i),P_SPINQ(g),S_FLIGHT,XP(D)::S(F)
        • Q(g);XP(D)::B(H)+S(F)
        • R(a);SBLOCK::B(H)+S(F)
      • Refutation
        • B(j);
    • Try
      • R(G);CHECK
      • Vars
        • K(d);P_SPINP(i),P_SPINQ(g),S_FLIGHT,XP(D)::B(H)
      • Refutation
        • P(f);XR(G)
    • Try
      • Q(J);
      • Threat
        • B(H)+S(F)
      • Vars
        • P(h);CHECK,P_SPINP(h),SBLOCK,XS(C)::B(H)+S(F)
        • K(d);OGATEB,P_SPINQ(g),S_FLIGHT,XP(D)::QAB1(J),XP(i)
        • Q(g);::QAR(J)+S(C)
      • Refutation
        • B(j);
  • Actual
    • S(C);
    • Threat
      • B(H)+S(F)
    • Vars
      • K(d);P_SPINP(i),P_SPINQ(g),S_FLIGHT,XP(D)::S(F)
      • Q(g);XP(D)::B(H)+S(F)
      • Q(g);P_PINR(G)::QAR(J)
      • R(a);P_PINR(G),SBLOCK::B(H)+S(F)
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